Sister-hook.



No. 755,841. PAT-ENTED MAR. 29, 1904-.

- T. H. BRADY.

SISTER HOOK.

APPLIIUATION mum mm. a, 1903.

H0 MODEL.

m MWJSBSI v V v Mi M MQZMQ, I I/W be seen by referring to Fig. 1 that the ends Patented March 29, 1904.

UNITED STATES PATENT OFFICE.

THOMAS H. BRADY, OF NEW BRITAIN, CONNECTICUT.

SISTER-HOOK.

SPECIFICATION forming part of Letters Patent No. 755,841, dated March 29, 1904.

Application filed December 3, 1903.

To all whom it ma concern.-

Be it known that I, THOMAS H. BRADY, a citizen of the United States of America, residing at New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Sister-Hooks, of which the following is a specification.

The object of the invention is to provide a device of the class specified having features of novelty and advantage, especially in the means for locking the parts together.

In the drawings, Figure 1 is a general view of the device with the jaws closed. Fig. 2 is a similar view, but with the jaws open.

Devices of this kind are adapted for a variety of uses and the general construction is well known.

This construction comprises a suitable means for securing the hook to its support, such as the ring a, which carries one member of the hook, I). The other member of the hook, 0, is pivoted to the first member, as at d. It will of these hook members overlap each over, the overlapping portion being cut away, as shown at 6, so that when the hook is closed its cross-section will be of substantially uniform size throughout. By reference to Fig. 1 it will be seen that when the parts of the hooks are closed anything hung from it will be supported by both members of the hook. This of itself tends to keep the members closed; but it is customary to provide some means for locking the parts of the hook together to guard against any accidental opening. My invention resides in the novel means I employ for accomplishing this result, this means comprising a ring f, pivoted as at g and adapted to overlie the projection m on the member 0,

preferably provided with a thumb-piece n, 7

Serial No. 183,614. (No model.)

by which it may be readily raised. It is to be noted that the pivotal point of the ring is above the top of the projection m, so that the tendency of the ring is to hug the projection m closely.

Heretofore a plain ring free to slide up and down the neck of the member 6 has been used to lock the parts together. This serves its purpose as a lock satisfactorily; but it is very difficult to manipulate when the hook is to be opened or closed. By pivoting the ring in the manner shown the ease with which the device can be manipulated is greatly increased and the pivoting of the ring at a point above the top of the locking projection m on the hook member 0 insures a secure lock for the parts.

I claim as my invention 1. In adevice of the class specified the combination with theaoverlapping hook members pivotally secured together, and the lockingprojection on one member, of a ring pivotally supported on the other member and adapted to engage said locking projection, substantially as described.

2. In a device of the'class specified the combination with the overlapping hook members pivotally secured together, and the locking projection on one member, of a ring pivotally supported on the other member, at a point above the locking projection, and adapted for engagement therewith, substantially as described.

In testimony whereof I afiix my signature in presence of two witnesses.

THOMAS H. BRADY.

Witnesses:

H. E. HART, D. I. KREIMENDAHL. 

